Wind classification scale - Beaufort

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Beaufort Scale

Scale devised in 1805 by Francis Beaufort to classify wind speed

Beaufort
Scale
Wind Description Windspeed (mph)
0Calm 0
1Light Air1-3
2Light Breeze4-7
3Gentle Breeze8-12
4Moderate Breeze13-18
5Fresh Breeze19-24
6Strong Breeze25-31
7Moderate Gale32-38
8Fresh Gale39-46
9Strong Gale47-54
10Whole Gale55-63
11Storm 64-72
12Hurricane >73
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